@article{ref1,
title="Psychiatric complications and shift of death age in Parkinson's disease",
journal="Advances in Neurology",
year="1990",
author="Danielczyk, W. and Fischer, P.",
volume="53",
number="",
pages="405-410",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-3952",
doi="",
url="http://dx.doi.org/"
}